Why do my chicken quarters taste horrid?

I cooked two frozen chicken quarters in my electric frying pan for about a hour. They tasted horrid. I ran out of Kraft BBQ sauce and I just topped with salt and pepper.

They tasted like pee. I just bought them 1 month ago and packaged and froze them right away after coming home.

Would it taste better with some BBQ sauce? What should I do? I have 5 packages of 2 chicken quarters in the freezer for later.